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3h
answered How does one detect a single photon?
2d
asked Density Matrix representation of excited atoms
May
1
answered Calculating the expectation value of spin
Apr
16
answered Are eductors working on the Bernoulli principle?
Apr
9
answered Why does the current in a purely capacitive AC circuit lead the voltage by 90 deg?
Apr
3
answered Wave-like description of Compton scattering and photoelectric effect
Mar
5
asked Is a heated tungsten filament in a “pure state” or a “mixed state”?
Mar
4
asked Is there a charge density in quantum mechanics?
Feb
23
answered How precise must the energies match for absorption of photons?
Feb
18
answered Can a system be engineered to cause a standing wave resonance with gravity waves?
Feb
1
answered A Neutron Star and an Atom are Similar
Jan
22
answered What is basic difference between photoelectric effect and Compton effect?
Jan
20
answered Why do electron emits energy in a LED when they transfer from the n type semiconductor to the p type semiconductor
Jan
6
answered Is it possible to start fire using moonlight?
Dec
16
answered Quantum Entanglement - an illusion based on a wrong assumption?
Dec
11
answered How does the tuner really work in a crystal set?
Nov
27
answered Any quadrupole approximation? Any example?
Nov
21
answered When does the concept of electric field in classical electrodynamics fail, and QED is needed?
Nov
21
asked Is Wikipedia wrong about Huygens-Fresnel Principle?
Oct
14
answered Why is absorption spectrum a line spectrum?